EP 1611723 B1 20160518 - POSITION ADJUSTED GUARD TIME INTERVAL FOR OFDM-COMMUNICATIONS SYSTEM
Title (en)
POSITION ADJUSTED GUARD TIME INTERVAL FOR OFDM-COMMUNICATIONS SYSTEM
Title (de)
POSITIONSKORRIGIERTES SCHUTZZEITINTERVALL FÜR EIN OFDM-KOMMUNIKATIONSSYSTEM
Title (fr)
INTERVALLE DE GARDE A POSITION AJUSTEE DESTINE A UN SYSTEME DE COMMUNICATION OFDM (MULTIPLEXAGE PAR REPARTITION EN FREQUENCE ORTHOGONALE)
Publication
Application
Priority
- SE 2004000390 W 20040317
- SE 0300824 A 20030325
Abstract (en)
[origin: WO2004086711A1] A device and a method within a communications system where at least some part of the transmission is executed by means of radio waves, and where symbols are transmitted by means of Orthogonal Frequency Divisional Multiplexing, so called OFDM-technology, between a transmitting unit and a receiving unit, at which the symbol transmission is executed over a transmission channel in blocks of binary digits with a guard interval GI between said blocks, where transmitting unit is equipped with means to control the length of the guard interval (GI) with regard to the physical conditions for/of the transmission channel, so that the guard interval can be reduced without the disturbance susceptibility being increased, but instead increasing the capacity/throughput of the transmission channel by the time that is set free/made available being used to transmit information. One embodiment of the invention includes a guard interval adjustment unit connected to other OFDM-equipment in transmitting and/or receiving unit.
IPC 8 full level
H04L 27/26 (2006.01); H04L 25/02 (2006.01)
CPC (source: EP US)
H04L 27/2605 (2013.01 - US); H04L 27/2607 (2013.01 - EP US); H04L 27/2646 (2013.01 - EP US); H04L 25/0212 (2013.01 - EP US); H04L 25/0224 (2013.01 - EP US)
Citation (examination)
WO 9730531 A1 19970821 - TELIA AB [SE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
LV
DOCDB simple family (publication)
WO 2004086711 A1 20041007; EP 1611723 A1 20060104; EP 1611723 B1 20160518; NO 20054011 D0 20050830; NO 20054011 L 20051221; SE 0300824 D0 20030325; SE 0300824 L 20040926; SE 527445 C2 20060307; US 2007159957 A1 20070712; US 2014010328 A1 20140109; US 8537759 B2 20130917; US 9008026 B2 20150414; US RE48087 E 20200707
DOCDB simple family (application)
SE 2004000390 W 20040317; EP 04721410 A 20040317; NO 20054011 A 20050830; SE 0300824 A 20030325; US 201314011188 A 20130827; US 201715487730 A 20170414; US 54984604 A 20040317